Why do pimples itch?

A:

The itching is a result of yeast that has multiplied in the hair follicles where pimples grow. Pimples may itch and erupt into bright red sores or a series of bumps as a result of a condition called pityrosporum folliculitis, according to the American Osteopathic College of Dermatology.

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The yeast that causes itching in and around pimples and skin rashes is found on everyone's skin. In most cases, the yeast does not cause infection or discomfort, according to the American Osteopathic College of Dermatology. The pimples typically are uniform in size, and they commonly appear on the upper chest and upper back. They primarily affect young to middle-aged male and female adults.

Oils and greasy lotions and sunscreens can cause the yeast to proliferate, according to the American Osteopathic College of Dermatology. Stress, fatigue, complications of diabetes and tight-fitting clothing in hot and humid environments also contribute to the production of yeast on the skin.

A person who is overweight, sweats profusely or wears tight clothing may be more prone to itchy yeast growth on the skin, according to the American Osteopathic College of Dermatology. Medications such as oral steroids and oral contraceptive pills also contribute to yeast production on the skin.

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Mayo Clinic explains that internal hemorrhoids do not usually cause any uncomfortable symptoms, but prolapsed, external hemorrhoids can become irritated by the passing of bowel movements, which can cause itching and discomfort. Additional symptoms of external hemorrhoids can include anal pain and painful anal lumps.

An intensely itchy belly button may be a sign of either a yeast or fungal infection of the skin, explains The Merck Manual Home Edition. Redness is usually present, and there may also be a discharge. The condition is treated with antifungal creams, powders or sprays.

According to WebMD, common causes of groin itch include ringworm and yeast infections, which are caused by fungi that thrive in warm, moist folds of the skin. Symptoms include redness, itching, peeling skin and chafing between the thighs. Ringworm and yeast infections are treatable with antifungal medications.

Itchy feet can be caused by a number of conditions, including psoriasis, eczema and diabetes, according to WebMD. Other common causes of itchy feet are parasitic infections such as hookworm, or fungal infections such as athlete's foot, according to Healthline.